livet



mi Model.) 4 Sheets-Sheet 1.

F. LIVET.

STEAM BOILER FURNACE o. 288,079,. f Patented Nov. 1883.

' li'zweizfi ar:

(No Model.) 4 SheetsSheet 2.

P. LIVET.

STEAM BOILER FURNAUE.

N0. Z88,079. Pa tented Nov, 6, 1883.

W ibzemsas i fl jwmmzz'vez u Patna MLkhugrzphen Washing. nu

(No Model.) 4 Sheets-Sheet 3'.

F. LIVET.

STEAM BOILER FURNACE.

Patented Nov, 6, 1883.

. fzzvanfira zonZaaaZzcZ M 529 mat fi M Azl/i (No Model.) 4 Sheets-Sheet 4.

F. LIV-ET.

. STEAM BOILER FURNACE. No. 288.079. Patented Nov. 6, 1883.

. fy f $266196?! mania":

I 67/ fimzfazryllifl N. PEXERS. mwu n m. Wnhlngmn, o. c. v

UNITED STATES PATENT OFFICE.

FOUNTAIN LIVET, OF LONDON, ENGLAND.

STEAM BOILER FURNACE.

SPECIFICATION forming part of Letters Patent No. 288,079, dated November 6, 1883.

Applicaiion filed July 18, 1852.

To all whom it may concern Be it known that I, FOUNTAIN LIvET, a subj ect of the Presidentof theltepublic ofFrancc, residing at London, England, have invented new and useful Improvements in Steam-Boiler Furnaces, of which the following is a specification. My invention relates, first, to setting a section of the furnace-flue directly over the bridge,

closed in bya coping, which touches theboiler in a thinline only; fifth, to arranging Galloway tubes of diminishing diameters from front to back in aboiler in order to increase the sectional area of the boiler-flue to the back end; sixth, to fitting rows of tubes vertically over each other, said rows diminishing in diameter upward in order to form an expansion-chamber of increasing area at the upper part.

The first part of my invention is illustrated in Figuresland3 of the drawings, the crown of the section B of the furnace-flue being higher at the back F than at the front G, and the top of the fire-bridge H being made parallel therewith. The object of this is to direct the current through the furnace upward instead of allowing it to escape horizontally, as over an ordinary bridge, also to retain the gases longer in the furnace for the purpose of blending them, meanwhile allowing the heat to act direct on the whole of the crownsurface of the furnacetube before leaving the furnace.

The second part of my invention is represented at Figs. 5 and 6 of the annexed drawings, I being the first return-flue, of larger area than the boiler-flue but smaller than the next return-flue, J. The bottoms K L of these fines are rounded, and also their tops, which termi nate at the water-level, as at Fig. 10.

According to the third part of my inven' (N0 model.) Patented in France July 15,1882, No. 150,112; in Belgium July 19, 1882, No. 58,507;

No. 38,013, and in England February 9, 1883, No. 726.

tion I form very large expansion-chambers M N at each end of the boiler, the said chambers being carried down as low as possible to serve assootreceivers. as seen at Figs. 1, i, 5, and 6. The object of these expansion-chambers being larger in proportion to the fines is that they may allow the gases to mingle and expand and thereby develop the greatest possible amount of heat. The upper parts of the expansion-chambers are also level with the waterlevel of the boiler, as shown.

According to the fourth part of my invention, as shown at Figs. 5 and 6, l? P are saddle-shaped supports under the longitudinal boiler. These supports are placed at intervals, and rest upon piers having a foundation below the inverted arches, as shown more particularly at Fig. 1, the coping there shown just touching the shell of the boiler and filling up the spaces between these supports.

The next part of my invention is shown at. Figs. 1, 4-, and 5, in which the Galloway tubes Q, Q diminish in diameter from front to rear of the boiler-flue, whereby the sectional area of the boiler-fine is increased gradually to the back end.

In the arrangement of tubes in multitubular and marine boilers, forming the sixth part of my invention, I fit tubes of diminishing diameter over each other in vertical lines, as shown at Figs. 1 and 4 of the annexed drawings, whereby I obtain a gradually-increasing area of the expansion-chamber fromthe lower to the upper rows of tubes to allow steam to escape more freely from the tubes and to expand naturally in rising, thus generating steam more rapidly and cvenl y, and avoiding priming. Sometimes I make, say, two rows of such tubes of the same diameter, and the next two rows above them slightly smaller, and so on.

Having fully described my invention, what I desire to claim, and secure by Letters Patent, 1s

l. Aboiler having a flue the rear part, F, of which is higher than the front part, G, and said parts connected by a tapering section, E, in combination with a bridge-wall, H, having its upper side made parallel with said fine E, substantially as described.

2. The combination of a fine, E, F, and G,

the rear part, F, of which is higher than the front part, and provided with Galloway tubes Q made of gradually-diminishing diameter, substantially as described. I

3. The combination of a boiler having a flue, E F G, the rear part, F, being provided with Galloway tubes Q of gradually-diminishing diameter, with the return-fiues I of larger area than the flue, J, and the bottoms K L of said fiues rounded, substantially as described.

4. In a boiler, the combination of a flue, E F G, constructed as shown, and part F, pro vided with Galloway tubes Q, with the rcturn-fines I of larger area than flue J, and the bottoms K L of said fiues rounded and 0011- I 5 nected by expansion-chambers M N, all constructed and arranged substantially as described.

In witness whereof I have hereunto signed my name in the presence of two subscribing 20 witnesses.

FOUNTAIN LIVET.

Witnesses:

CHARLES A. GRossETETE, H. GARDNER,

Both of 166 Fleet Street, London. 

